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They are efficient

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A nanoparticle is a very small particle that can not even be seen under a microscope.

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small man-made particles of matter used to make things more efficient (lighter,whiter, etc)

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small man-made particles of matter used to make things more efficient (lighter,whiter, etc)

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a very small particle that can be found in our clothes materials, food, and cosmetics. Compare to our hair, it is 1,000 times smaller.

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changes the way a substance work

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They're small enough to not be visible to the naked eye

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They're small enough to not be visible to the naked eye

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they are used to measure things that are very small.

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For conducting different kinds of experiments

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they use experiments, with things like daphnia

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Microscopic particles made to handle what normal sized materials can't.

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to fill space

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Ten million times smaller than a hair

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they can get through filters or things that are supposed to stop them, get to the animals and hurt them

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Depending on what they are, they can pollute and negatively hurt water sources and wildlife.

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an engineered particle that can be recused and recycled

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They are used to make certain objects stronger.

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A tiny particle that can be found on anything.

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A tiny particle that can be found on anything.

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Health concerns

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they start somewhere and end up everywhere

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test the water and aquatic ecosystems

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to experiment how they effect our environment

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they try to determine the LD50

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1000 times smaller than a strand of human hair

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1000 times smaller than a strand of human hair

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Nanoparticles in large doses can be toxic in an environment

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they add it to different substances and see how it changes or how its affected

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Have absolutely no idea.

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They travel from different places depending on what they attach to or where they are located.

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Animal testing.

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We perform ecotoxicity experiments with model organisms and quantify impacts on nutrient cycling with microcosm studies. 

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We perform ecotoxicity experiments with model organisms and quantify impacts on nutrient cycling with microcosm studies. 

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They look at the LD50 of test species.

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https://www.sciencedaily.com/terms/nanoparticle.htm

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They are already being used in the manufacture of scratchproof eyeglasses, crack-resistant paints, anti-graffiti coatings for walls, transparent sunscreens, stain-repellent fabrics, self-cleaning windows and ceramic coatings for solar cells.
http://ec.europa.eu/health/scientific_committees/opinions_layman/en/nanotechnologies/l-2/5-nanoparticles-consumer-products.htm#0

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Nanoparticles can be manufactured and also exist in nature. They are so small that you have to use transmission electron microscopy to see them.

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They have unique surface properties that help them increase the performance of products like solar cells

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They have unique surface properties that help them increase the performance of products like solar cells

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The life cycle includes the production of the materials, the use of the materials in product form (i.e. solar cells, sports equipment, Oreos), and the disposal of the product when a user is finished using the product. 

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The life cycle includes the production of the materials, the use of the materials in product form (i.e. solar cells, sports equipment, Oreos), and the disposal of the product when a user is finished using the product. 

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Nanoparticles can block the digestive tract of Daphnia, can cause mortality, and could impact the reproduction of the Daphnia.

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Nanoparticles are being used in cosmetics

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Nanoparticles are being used in cosmetics

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https://www.nanowerk.com/nanotechnology-in-cosmetics.php